Steamfitting and hot water piping is defined as boilers, piping, pumps, coils, convectors, heat exchangers, radiation, in-floor heat, or any system employing steam or hot water as a heating medium.

Other piping systems include any process piping system or hazardous or flammable materials transported via a piping system. This includes air piping if greater than 100 PSI.

Code Requirements

See Chapter 33.04 of the Saint Paul Legislative Code for information about steamfitting / hot water / piping systems work.

Expiration & Renewal

Each permit issued shall expire if the work authorized by the permit is not commenced within 180 days from the date issued, or if the work is suspended or abandoned at any time after the work has begun for a period of 180 days.

In addition, exterior work done on a one or two-family dwelling (including garages) must be completed within one year from the date issued.

Interior and exterior work done on commercial properties (including hotels and apartment buildings) where the permit valuation is under $500,000 must be completed within one year from the date issued.